Kathleen M. Blee is Distinguished Professor of Sociology at the University of Pittsburgh, Pennsylvania, United States, and a member of the Scientific Advisory Board of C-REX, the Center for Research on Extremism in Oslo, Norway.

Robert Futrell is Professor of Sociology at the University of Nevada, Las Vegas, United States, and longtime expert on right-wing extremism.

Pete Simi is Professor of Sociology at Chapman University, Orange, California, United States, and Executive Committee member for the National Counterterrorism, Innovation, Technology, and Education (NCITE) Center at the University of Nebraska, Omaha, Nebraska, United States.

1 Out of Hiding

2 Before Obama

3 Whitelash

4 Charlottesville

5 Insurrection

6 The Path Ahead

Data appendix

Out of Hiding: Extremist White Supremacy and How It Can Be Stopped explains how white supremacist extremism endures, the varied forms it takes, its relationship to systemic racism, and what to do about it.